249 citations · 2.8k across the 60 of their papers we have counts for
15 papers · 1 filter
Perfectly hidden order and Z2 confinement transition in a fully packed monopole liquid
Attila Szabo, Santiago A. Grigera, P. C. W. Holdsworth +5
We investigate a variant of spin ice whose degenerate ground states are densely packed monopole configurations. An applied field drives this model through a Z2 confinement transiti…
Neutron scattering from fragmented frustrated magnets
F. Museur, E. Lhotel, P. C. W. Holdsworth
The fragmentation description is used to analyse calculated neutron scattering intensities from kagomé ice and spin ice systems. The longitudinal, transverse and harmonic fragments…
Fragmentation in Frustrated Magnets -- A review
E. Lhotel, L. D. C. Jaubert, P. C. W. Holdsworth
Spin liquids are exotic phases of matter that often support emergent gauge fields and quasi-particle excitations. While spin liquids are commonly known for remaining disordered, th…
Fragmented monopole crystal, dimer entropy and Coulomb interactions in DyIrO
V. Cathelin, E. Lefrançois, J. Robert +12
Neutron scattering, specific heat and magnetisation measurements on both powders and single crystals reveal that DyIrO realizes the fragmented monopole crystal state in…
The multiple symmetry sustaining phase transitions of spin ice
V. Raban, C. T. Suen, L. Berthier +1
We present the full phase diagram of the dumbbell model of spin ice as a function of temperature, chemical potential and staggered chemical potential which breaks the translational…
Emergent Electrochemistry in Spin Ice: Debye-Hückel Theory and Beyond
Vojtěch Kaiser, Jonathan Bloxsom, Laura Bovo +3
The low-temperature picture of dipolar spin ice in terms of the Coulomb fluid of its fractionalised magnetic monopole excitations has allowed analytic and conceptual progress far b…
Nature of finite-temperature transition in anisotropic pyrochlore Er2Ti2O7
M. E. Zhitomirsky, P. C. W. Holdsworth, R. Moessner
We study the finite-temperature transition in a model XY antiferromagnet on a pyrochlore lattice, which describes the pyrochlore material Er2Ti2O7. The ordered magnetic structure s…
Crystal Shape-Dependent Magnetic Susceptibility and Curie Law Crossover in the Spin Ices Dy2Ti2O7 and Ho2Ti2O7
L. Bovo, L. D. C. Jaubert, P. C. W. Holdsworth +1
We present an experimental determination of the isothermal magnetic susceptibility of the spin ice materials Dy2Ti2O7 and Ho2Ti2O7 in the temperature range 1.8-300 K. The use of sp…
Quantum order by disorder and accidental soft mode Er2Ti2O7
M. E. Zhitomirsky, M. V. Gvozdikova, P. C. W. Holdsworth +1
Motivated by recent neutron scattering experiments, we derive and study an effective "pseudo-dipolar" spin-1/2 model for the XY pyrochlore antiferromagnet Er2Ti2O7. While a bond-de…
Spin-wave analysis of the transverse-field Ising model on the checkerboard lattice
Louis-Paul Henry, Peter C. W. Holdsworth, Frédéric Mila +1
The ground state properties of the S=1/2 transverse-field Ising model on the checkerboard lattice are studied using linear spin wave theory. We consider the general case of differe…
Low energy theory of the t-t'-t''-U Hubbard Model at half-filling: interaction strengths in cuprate superconductors and an effective spin-only description of La_2CuO_4
J. -Y. P. Delannoy, M. J. P. Gingras, P. C. W. Holdsworth +1
Spin-only descriptions of the half-filled one-band Hubbard model are relevant for a wide range of Mott insulators. In addition to the usual Heisenberg exchange, many new types of i…
Ground state and low-lying excitations of the spin-1/2 XXZ model on the kagome lattice at magnetization 1/3
A. Honecker, D. C. Cabra, M. D. Grynberg +5
We study the ground state and low-lying excitations of the S=1/2 XXZ antiferromagnet on the kagome lattice at magnetization one third of the saturation. An exponential number of no…
Neel order, ring exchange and charge fluctuations in the half-filled Hubbard model
J. -Y. P. Delannoy, M. J. P. Gingras, P. C. W. Holdsworth +1
We investigate the ground state properties of the two dimensional half-filled one band Hubbard model in the strong (large-U) to intermediate coupling limit ({\it i.e.} away from th…
Quantum kagome antiferromagnet in a magnetic field: Low-lying non-magnetic excitations versus valence-bond crystal order
D. C. Cabra, M. D. Grynberg, P. C. W. Holdsworth +5
We study the ground state properties of a quantum antiferromagnet on the kagome lattice in the presence of a magnetic field, paying particular attention to the stability of the pla…
From classical to quantum Kagome antiferromagnet in a magnetic field
D. C. Cabra, M. D. Grynberg, P. C. W. Holdsworth +1
We study the magnetic properties of the Kagome antiferromagnet going from the classical limit to the deep quantum regime of spin 1/2 systems. In all the cases there are special val…